July 2002 - Zope - Zope lists

permissions ques
by Aseem Mohanty 12 Jul '02

12 Jul '02

I wrote a product around a previously written app.. I made most of its functions private barring three of them which are public. Now when I try to access these public functions from a py-script... I get a Unauthorized - cannot use in this context error.... In my product... __ac_permissions__=( ('View management screens', ['manage_tabs', 'manage_main']), ('Change permissions', ['manage_access',] ), ('Change RC2', ['manage_edit','manage_test',]), ('View RC2', ['',] ), ('Use RC2 Encryption', ['encrypt','decrypt',] ) # these are two of the public functions, # I dont use the third outside of ZMI ) when I try and call (after loggin in as a normal user in the site) encrypt or decrypt I get the error I mentioned above. In my site root security settings I have "Use RC2 Encryption" set to "Authenticated". What am I missing here?? What more do I have to do to be able to use these functions?? I can use them in the ZMI when I am testing the product as Manager. TIA AM -- ================================================================== Aseem Mohanty Neurobehavioral Systems Inc, 828 San Pablo Ave, Albany, CA 94706 (R) 510 7696011 (M) 510 3014871 (O) 510 5279231 ================================================================== "I saw `cout' being shifted "Hello world" times to the left and stopped right there!!" -- Steve Gonedes ==================================================================

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<newbie>What am i missing? Calling zsqlmethods from different folder</newbie>
by Thomas Weholt 11 Jul '02

11 Jul '02

I've got a sql-method in one folder called /MovieReviews and want to call it in my /index_html-document. Tried <dtml-in "MovieReviews.sqlMethod"> and hundereds of variants, but with little luck. Looked in the docs at www.zope.org but cannot find anything similar. Isn't this a very common thing? I like to put all my sql-related stuff in one folder and the html things in another etc. Isn't the stuff I create in subfolders available in the root? Thanks for you patience. Best regards, Thomas

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Freshmeat for Zope?
by Marius Gedminas 11 Jul '02

11 Jul '02

Is there a Zope product for keeping track of software packages, similair to Freshmeat? Google discovered talks about writing such a product in 1999 in one of Zope mailing lists, but I haven't found anything concrete. Marius Gedminas -- To err is human, but to really foul things up requires a computer.

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dtml-let
by Alejandro Fernandez 11 Jul '02

11 Jul '02

Hi, I'm trying to output a table using dtml-in, that shows a certain number of rows in that table, then adds up the rows not shown, and shows an "other values" row, and finally shows totals for all the data in the table. So the output would be something like this: Language Requests Uniques Sessions Percent Time to Load it 92384 293 231 56.1% 3.0 fr 51563 65487 21 31.3% 1.0 de 9834 9648 521 6.0% 3.2 [Other] 1 5416 25163 31 3.3% 0.0 Total: 164653 101245 354935 100% 1.44 The dtml I'd like to use would be something like this: dtml-let "set all variables to zero" dtml-in the request dtml-if sequence-number <= floor output a row with data dtml-else dtml-let "add up "other values" data using variables set at top" dtml-if sequence-end output "other values" row output "totals" row /dtml-let /dtml-in /dtml-let But dtml-let is zeroing the variables each iteration. Is there a better way to do what I'm trying to do? Thanks, Ale -- Alejandro Fernandez Electronic Group Interactive --+34-65-232-8086--

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Newbie: Python:Path Troubles
by Rebecca.R.Hepper＠seagate.com 11 Jul '02

11 Jul '02

Hello All, I am using Zope 2-5-1 and CMF-1.2. I am trying to use python:path in a html form to get a path name which I will pass to a python script and use the setDescription function on. I am not getting the python:path statement to work. If I print my python:path statement into a table header I get something like: "<PortalFolder instance at 90a24a0>" What I am doing wrong? I have pasted portions of my code below. I also attempted to use 'nocall' but didn't get that to work for me either. Thanks in advance! <table tal:define="myhere root/MyPortal/folderA"> <tr valign="top" align="left" tal:repeat="folders python:myhere.contentValues(filter ={'Type':'Folder'})"> <span tal:define="folderID folders/id"> <th tal:content="folders/title">Title</th> <td><input type="radio" name="folderTitle" value="folders" tal:attributes="value folders/title"></td>  <td><input type="hidden" name="folderPath" value="folderPath" tal:attributes="value python:path('root/MyPortal/folderA/%s' % folderID)"></td> </span> </tr> Then in the python script: folderPath.setDescription("This is my new description")

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debug question
by Dirk Datzert 11 Jul '02

11 Jul '02

Hi, how can I debug python/zope. I need to find out where a special user-object came from and which contents it has. Regards, Dirk

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unexpected hangs and how to troubleshoot
by Ed Colmar 11 Jul '02

11 Jul '02

Hi all I've got a zope 2.4.3 running on linux. It has been running flawlessly for 6 months, but now is starting to act up. Every 6 hours or so the process stops. I checked the logs each time, and do not see any correlation between pages served and this problem. I was going to just upgrade to 2.5.1, but since it has been working alright so far I would just wait for the 2.6 stable. Are there any resources for troubleshooting this kind of problem? I went through the archives a bit, but god, yahoo groups just sucks. Are there any other list archives? Thanks for any ideas. -ed- -- Green Graphics ::: Print and Web Design ::: 510.923.0000

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URLs, objects, and <dtml-
by Dennis Allison 11 Jul '02

11 Jul '02

I am pretty sure there are some clever techniques I have missed. When I first started using Zope accessing objects at different places in the object hiearchy was a problem. I found some workarounds and learned to cope, but I am now revisiting the issue. For specificity, consider the following folder hiearchy: R A1 B1 D1 C1 A2 B2 C2 D2 URLs would reference the somepage object in D2 using the URL R/A2/C2/D2/somepage. Now, DTML, for example, <dtml-var >, specifies an object which is located the current namespace by one of a variety of rules including acqusition. Control over the namespace is provided using <dtml-with> but using it can be cumbersome. To reference an object in the folder D2 from D1 would require wrapping the referencing <dtml-var> in a next of <dtml-with> statements which make the namespace of A2, C2, and D2 available. For a site with a deep and complicated hiearchy, this is a mess. Hard to write, hard to maintain, and very error prone. The tendancy is to make all scripts look like central mechanism wrapped in multiple with's to setup the right namespace. A better approach might be to access all nonlocal objects through a Python Script that traverses a URL parameter and returns the specified object. In this case, referencing the object foo in D2 above would be accomplished by <dtml-var name="traverse_to_object('R/A2/C2/D2/foo')"> and so forth. This should work, but it kneecaps Zopes namespace management features because it returns an object, not a name to be resolved to an object in context through bobo_traverse, acqusition, and so forth. So, finally, the question: How does one manage in an efficient and compact fashion accesses to objects stored outside of the acquisition path? There are a couple of other notational issues that are a bit confusing. If I have a folder (call it scripts) at my site root, I can reference the individual scripts by the names 'scripts.script1()'. When does this notation extend to objects stored in nested folders? One the defining notions of Zope is the equivalence of a page as specified by a URL and an object. What's the reason that something like <dtml-var name="R/A2/C2/D2/foo"> does not resolve to the name foo in the container reachable by traversing "R/A2/C2/D2" when accessed from within Zope. It does work from the Web. -dra

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long data type truncation in zmi
by Cindy Reikes 11 Jul '02

11 Jul '02

When I update a long property's default value in a property sheet, the last digit is getting truncated. I am running 2.4.3 on IE 5.5. Anyone ever seen this? __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com

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Question about caching systems for Zope.
by Alec Munro 11 Jul '02

11 Jul '02

I'm new to Zope, and while I understand caching in general, I have 0 experience using it in Zope. But I have an idea about what I would want in a caching system, so I thought I would query here and see if any of you can tell me if Zope can do what I would like. Basically, I would like a caching system that allows you to control the caching rules for different parts of a document? For example, you can apply caching ruleset X to part 1 of the document "Apple", and caching ruleset Y to part 2 of document "Apple". The need for this is if I had a page that would look the same for most users, but display user information if it was a logged in user. I would want everything except the user information section to be cached for long periods of time, as the source of it wouldn't be updated for often. But the panel for the user information I would want cached for the duration of the user's session. So I'm just asking if Zope offers something like this, or if you have any recommendations for how to achieve a similar effect. Or if it isn't doable, how close can I get? Thanks very much, Alec Munro

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